linux-kernel - Re: [PATCH 00/19] perf intel-pt: Add support for efficient time interval filtering

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Date:   Fri, 7 Jun 2019 16:49:23 -0300
From:   Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To:     Adrian Hunter <adrian.hunter@...el.com>
Cc:     Jiri Olsa <jolsa@...hat.com>, Jin Yao <yao.jin@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/19] perf intel-pt: Add support for efficient time
 interval filtering

Em Tue, Jun 04, 2019 at 03:59:58PM +0300, Adrian Hunter escreveu:
> Hi
> 
> Here are some patches to add support for efficient time interval filtering.
> First there are 3 patches to add perf time interval to the itrace options
> structure.  Then changes to Intel PT to support "fast forwarding" to a
> particular timestamp.  The filtering is added in patch "perf intel-pt: Add
> support for efficient time interval filtering".  After that there are
> patches to time-utils, leading up to adding a new test and adding support
> multiple explicit time intervals.
> 
> The Intel PT changes make time filtering much faster because decoding is
> limited to the minimal time ranges needed to support the time intervals.

Thanks, applied!

Will now go with the other patches in this batch to the container tests,
hopefully should hit Ingo's mail box soon :-)

- Arnaldo

- Arnaldo
 
> 
> Adrian Hunter (19):
>       perf auxtrace: Add perf time interval to itrace_synth_ops
>       perf script: Set perf time interval in itrace_synth_ops
>       perf report: Set perf time interval in itrace_synth_ops
>       perf intel-pt: Add lookahead callback
>       perf intel-pt: Factor out intel_pt_8b_tsc()
>       perf intel-pt: Factor out intel_pt_reposition()
>       perf intel-pt: Add reposition parameter to intel_pt_get_data()
>       perf intel-pt: Add intel_pt_fast_forward()
>       perf intel-pt: Factor out intel_pt_get_buffer()
>       perf intel-pt: Add support for lookahead
>       perf intel-pt: Add support for efficient time interval filtering
>       perf time-utils: Treat time ranges consistently
>       perf time-utils: Factor out set_percent_time()
>       perf time-utils: Prevent percentage time range overlap
>       perf time-utils: Fix --time documentation
>       perf time-utils: Simplify perf_time__parse_for_ranges() error paths slightly
>       perf time-utils: Make perf_time__parse_for_ranges() more logical
>       perf tests: Add a test for time-utils
>       perf time-utils: Add support for multiple explicit time intervals
> 
>  tools/perf/Documentation/perf-diff.txt             |  14 +-
>  tools/perf/Documentation/perf-report.txt           |   9 +-
>  tools/perf/Documentation/perf-script.txt           |   9 +-
>  tools/perf/builtin-report.c                        |   8 +-
>  tools/perf/builtin-script.c                        |   8 +-
>  tools/perf/tests/Build                             |   1 +
>  tools/perf/tests/builtin-test.c                    |   4 +
>  tools/perf/tests/tests.h                           |   1 +
>  tools/perf/tests/time-utils-test.c                 | 251 ++++++++++++++++
>  tools/perf/util/auxtrace.h                         |  34 +++
>  .../perf/util/intel-pt-decoder/intel-pt-decoder.c  | 188 ++++++++++--
>  .../perf/util/intel-pt-decoder/intel-pt-decoder.h  |   5 +
>  tools/perf/util/intel-pt.c                         | 325 +++++++++++++++++++--
>  tools/perf/util/time-utils.c                       | 132 ++++++---
>  14 files changed, 894 insertions(+), 95 deletions(-)
>  create mode 100644 tools/perf/tests/time-utils-test.c
> 
> 
> Regards
> Adrian

-- 

- Arnaldo